Network and Security Engineer

Crescentia Infotech; Ernakulam; On-site; INR 450,000 - 700,000; Full time

Job summary

Crescentia Infotech in India is seeking an L2 Network Engineer to provide advanced support for network and security issues. The role involves troubleshooting, implementing new project requirements, and working closely with customers to resolve complex problems.

Responsibilities include configuring routers, switches, firewalls, and WAN/LAN with modern security controls, plus remote support and on-site deployments when needed. Strong communication and teamwork are essential.

Qualifications

• Bachelor's degree in CS/IT or related field.
• Strong understanding of network protocols, architectures, and technologies.
• Hands-on experience with routers, switches, and firewalls.
• Excellent troubleshooting and problem-solving abilities.

Responsibilities

• Provide technical support for network-related issues, including routing, switching, and security.
• Manage and optimize network performance with monitoring tools.
• Design and implement LAN/WAN and wireless networks.
• Lead upgrades, migrations, and expansions with minimal downtime.
• Provide pre-sale assistance to the sales team as needed.
• Collaborate with customers to implement new project requirements.

Skills

Network troubleshooting

Communication

Team collaboration

Remote support

Education

Bachelor's degree in Computer Science, Information Technology, or related field

Tools

Fortigate

Cisco

SonicWall

Palo Alto

Aruba ClearPass

Cisco ISE

CheckPoint

Huawei

Juniper

Fortimail

Job description

Role Summary

As a network /Security engineer, you provide advanced technical support for network & security related issues. This role requires in-depth knowledge of network infrastructure security troubleshooting, and problem-solving skills. The L2 Network Engineer will work closely with customer to Implement new projects requirement, diagnose, troubleshoot, and resolve complex network problems.

Key Responsibilities

• Provide technical support for network-related issues, including but not limited to:
• Routing and switching protocols (e.g., OSPF, BGP, VLANs)
• Network security (firewalls, VPNs)( Fortigate,Cisco,Sonicwall,Palo Alto,Fortimail)
• Network performance monitoring and optimization (SolarWinds , Cisco Prime, WhatsApp Gold)
• LAN/WAN connectivity issues
• Implement enterprise communication systems Cisco /AVAYA (VoIP, video conferencing, collaboration tools).
• Design and implement robust LAN, WAN, and wireless networks. (Cisco, ARUBA, Huawei, Juniper)
• Design and implement NGFW including Palo Alto, Checkpoint, SonicWall & Fortinet Firewalls.
• Design and implementation of Aruba ClearPass and Cisco ISE.
• Lead network upgrades, migrations, and expansion activities with minimal downtime.
• Simulate critical scenarios in test labs for problem-solving and compatibility checks.
• Configure and support WAF, Load Balance, Email Security and WSA.
• Implement security protocols, network segmentation, and policy-based routing (PBR).
• Troubleshoot and resolve complex network problems through remote access tools and onsite
• Escalate critical issues to higher-level support when necessary.
• Document and track incidents and resolutions in the ticketing system.
• Maintain and update knowledge base articles and FAQs.
• Participate in on-call rotation for after-hours support.
• Prepare all project related documentation (HDL/LLD/Scope of work /Signoff ).
• Provide Pre-sale assistance to sales team as when necessary.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, or related field.
• Strong understanding of network protocols, architectures, and technologies.
• Hands-on experience with network devices (routers, switches, firewalls).
• Excellent troubleshooting and problem-solving skills.
• Strong communication and interpersonal skills.
• Ability to work independently and as part of a team.
• Willingness to acquire all related certification and hands on experience.
• Experience with remote support tools (e.g., TeamViewer, Any Desk).

Preferred Qualifications

• Industry certifications (e.g., CCNA, CCNP).
• Experience with network monitoring and management tools.

Certifications Preferred:

• Cisco CCNP Enterprise - Certification and get trained
• Aruba NAC Clear Pass - Certification and get trained
• Palo Alto - PC NSA - Certification and get trained
• sonic wall Firewall - Certification and get trained
• Forti mail, and FortiGate Firewall - Certification and get trained.